Automatic doffer for fly-spinning frames.



N. R. NEWSHOLME. MTOMATIC DOIFER FOR FLY SPINNING FRAMES. APPLICATIONFILED SEPT. 29, 1908.

954,688. Patented Apr. 12, 1910.

4 SHEETS-SHEET 1.

W/ 777525 855 M M- N. R. NEWSHOLME.

AUTOMATIC DOFFER FOR FLY SPINNING FRAMES. VAPPLIUATION FILED SEPT. 29,1908.

954,688, Patented Apr. 12,1910.

M 415' a I Mr/wym- N. R. NEWSHOLME. AUTOMATIC DOFPER FOR FLY SPINNINGFRAMES.

APPLICATION FILED SEPT. 29, 1908.

954,688, Patented Apr. 12, 1910.

4 SHEETS-SHBET 3.

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ANDREW a. smmm co PHCTO-LITHUGRAFMERS wsumewa n c N. R, NBWSHOLM-E.AUTOMATIC DOFFER FOR FLY SPINNING FRAMES.

APPLICATION FILED SEPT. 29, 1908.

Patented Apr. 12, 1910.

4 SHEETS-SHEET 4.

NORMAN ROBERT NEXVSI-IOLME, OF KEIGHLEY, ENGLAND.

AUTOMATIC DOFFER FOR FLY-SPINNING FRAMES.

To all whom it may concern:

Be it known that I, NORMAN ROBERT Nnwsnomrn, a subject of the King ofGreat Britain and Ireland, whose postal address is Holme Royd, Keighley,in the county of York, England, have invented certain new and usefulImprovements in and Relating to Automatic Doffers for Fly- SpinningFrames, of which the following is a specification.

This invention relates to improvements in dotfing mechanism for flyspinning frames, and has for its object the arrangement, construction,and application to a spinning frame of certain mechanism whereby thefull spools, bobbins, tubes, or the like, may be automatically doffedfrom, and empty ones inserted on the spindles. The mechanism may bereadily applied to an existing frame and the ordinary spindles andfliers are in no way interfered with, with the exception of slightlyaltered whirls, and the addition of a worm wheel or the like ashereinafter described.

In describing my invention in detail, reference is made to theaccompanying sheets of drawings, similar letters indicating similarparts, in which Figure 1 represents a sectional elevation through aspinning frame, with my improvements added. Fig. 2 represents anelevation of a portion of a spinning frame with my improvements added.Fig. 3 represents a detail of rack gearing. Figs. 4 and 5 representelevation and plan respectively of the flier holder. Fig. 6 (in twoportions) represents a plan of the cam gearing and clutches. Fig. 7represents a plan of the setting on motion. Figs. 8-16 representdiagrammatic views showing various motions hereinafter referred to. Fig.17 represents an elevation of the mechanism for guiding the whirl bands.Figs. 18 and 19 represent views showing the lifter mechanism. Figs. 20and 21 are details hereinafter referred to.

In carrying out my invention, I will describe as far as possible, themechanism and movements as applied to one spindle on one side of a flyspinning frame. Each spindle is doffed in a similar manner, and eachside of the frame has separate butsimilar mechanism, that is, themechanism is in duplicate.

From the main driving shaft A of the machine, (Fig. 7 the gearinghereinafter Specification of Letters Patent.

Application filed September 29, 1998.

Patented Apr. 12, 1910.

Serial No. 455,365.

described is driven preferably by means of a double chain wheel Amounted on the loose pulley of a fast and loose pair, the fast pulleydriving the ordinary mechanism in the usual manner. One chain A engagesa chain wheel A mounted on one of the mechanism driving shafts, carryinga pinion gearing into wheel A on shaft B, at one side of the machine,the other chain driving the other side, and the shafts B may be providedwith clutch mechanism A connected to the setting on rod or the like A,so arranged as to throw the dofling mechanism into or out of gear, asrequired, this mechanism, however, being of usual construction, and Imay adopt other mechanism to the same purpose. WVith a bevel wheel onthe shaft B gears a bevel wheel B having on its shaft B a worm B whichengages with and drives a worm wheel C mounted on a cam shaft C, andthus imparts a much slower motion to the said cam shaft C than that ofthe shaft B. On the shaft C are mounted face cams having a single actionin some cases and a double one in others. These cams I have designatedby the numbers 1 to 13. Engaging with the faces of these cams are endsof levers designated by numbers 1 to 13*, which levers are pivoted to asuitable frame, and held in contact with their respective cams orclutches by means of springs S. The other ends of the said levers inmost cases engage sliding clutch members D, mounted on feather keys orthe like on shaft B. These members when placed by the cams and leversinto operation engage fixed clutch members E, also mounted on the shaftB, and having in connection therewith chain wheels, pulleys, gearingor-the like F, whereby the desired motion is transmitted to the variousoperating parts hereinafter described.

The first of the operating parts is the flier holder Gr, which is ametal plate in the shape of a fork, (Figs. 1, 4, 5, and 14,) having ineach prong a recess G for the flier H to rest in. The spindle J entersthe opening G between the forks which are sufliciently wide and ofuneven lengths to insure the flier resting therein at the desired angle,the uneven arms tending to turn the flier H as required. The spindle Jand flier H are attached together by the usual screw joint. The holder Gis mounted on a bar Gr (Fig. 1) having attached thereto racks G4 whichare engaged by pinions G mounted on a shaft G (Fig. 3), said shaft beingoperated by means of the chain K, passing around chain wheels F and Foperated by clutch members E, D, and lever 5 and cam 5, (Fig. 6).Intermediate gear wheels are arranged in order to insure the correcttravel of rack G, as shown in Fig. 1.

As the flier holder G comes forward and etains the flier, the spindle Jis turned in the required direction by means of pinion J (Figs. 1 and2), mounted thereon being on gaged by worm wheel J mounted on a slidingshaft J which is revolved through the Cam 1 and its lever 1 and gearingshown in Fig. 10. The sliding shaft- J is moved by the cam 13 and lever13, (Figs. 6 and at the desired time in order to engage the wheel J withthe pinion J By this means the flier H is released or unscrewed from thespindle J. Cam 9 and lever 9 then cause the bobbin holder L to moveforward (Figs. 1, 6, 11, and 13). This holder L is mounted on a bar Lwhich is carried in racked studs or the like L operated by means of apinion L similar to the arrangement shown in Fig. 3. The pinion L isoperated by means of its cam 9, lever 9 clutch members E and D, chainwheel F chain K and suitable chain wheels as shown in Fig. 13. The fullbobbin is gripped by the holder L, as shown in Fig. 21. Cam 7 and lever7 (Figs. 6 and 11) now come into operation and cause thestep rail M tobe lowered, this operation being performed by the gear wheels F and Frevolving shaft M and engaging rack M in step rail carrier M At the sametime, or practically so, as lever 7 comes into operation, cam No. 1operates lever 1, and through the gearing shown in Fig. 8, revolves theshaft N which carries on its end a gear wheel N which is in gear withthe ordinary lifter motion as shown in Figs. 18 and 19. The liftermotion being operated, the lifter rail N is lowered, the lifter motionbeing as it were, driven backward. Vi hen the dotling mechanism is seton, a clutch lever T engaging a sliding member T is operated bysetting-on rod A, causing the said member to disengage from the member Tmounted on shaft T on which is carried a worm wheel T and gear wheels Tengaging with the lifter mechanism, as shown in Figs. 18

and 19. The lifter mechanism is thus only operated when its cam 1 orcauses same to be put into gear.

Some device is required to provide for the altered conditions as regardsthe whirl band, which passes in the usual way around whirl )V (Figs. 1and 2). On the collar Q} of the spindle rail Q is mounted a loose whirl7 the said collar being provided with an extension to carry the loosewhirl, and in the case of an altered frame, the new collars Q would haveto be substituted for the old pattern.

The whirl band passes between guide bars ll (Fig. 17) pivoted to theframe of the machine, so as to be capable of a slightly upward motion.This motion is accomplished by means of lever Vi slidably attached toguide bars by means of pin ll and slot the lever being operated by meansof sliding lever 1V, connected to the setting on mechanism by means ofred A which is preferably connected to the belt fork operating rod A(Fig. 17). Thus, as the dofling mechanism is started, the whirl band islifted off whirl and placed on to loose whirl and as the spindle isturned by its gearing to unscrew, and screw on the flier the whirl bandis on the loose whirl, and the free movement of the spindle is notinterfered with. )Vhen the dol'ling mechanism knocks oif, or spinningstarts, the guide bars V are moved in the reverse direction, and thewhirl band replaced on to the ordinary whirl.

The bobbin holder cam 9, having a double action then causes the bobbinholder to be traveled farther forward, and as the spindle J has fallenclear of the bobbin, the bobbin is moved forward until same is over apeg P mounted on bar P and hinged to a supporting bar P The pegs P arewhen in their lowest position, somewhat tilted, to facilitate theremoval of the bobbin, as shown in Figs. 1 and 12, owing to the bar Pbeing in contact with a projection P formed on the bracket B. An arm 1carries a sliding cutter bar 0. On the spindle rail Q or otherconvenient part of the machine frame is carried a bracket R, (Figs. 1and 12) through which the guide shafts P of the bar P may work. Thisbracket R carries a movable bar, shaft, or the like R on which emptybobbin pegs R are carried. These pegs are provided with a spring R (Fig.1), in order to hold the empty bobbins thereon when the bar R is turnedin the direction of the ar row. The peg rail or bar P is then operatedby means of cam S, and lever 8, and raised by means of chain K throughthe gearing shown in Fig. 12, until the peg has entered the bobbin, thepeg P assuming a vertical position as soon as the projection P has beenpassed. The bar R is then turned by the cam 3, and its lever 3 cominginto operation by means of the gearing and chain K shown in Fig. 10, andthe empty bobbin on the peg R is turned until it is over the spindle J,i. e. in the direction of arrow in Fig. 1. As the bar is turned, thespring R comes in contact with a projection R (Figs. 1 and 2), mountedpreferably on the bar G below the flier holder G, and is pressed backand allows the empty bobbin to fall on the spindle end. The shaft R iscounter bal anced by means of weight B (Fig. 2), and

resumes its original position immediately its function has been carriedout. As soon as the full bobbin has been placed on its peg P, the bobbinholder L returns through the action of cam 6, and its lever 6 throughthe gearing shown in Figs. 6 and 11. Then the empty bobbin has beenplaced on its spindle in the manner before described, the cam 10 andlever 10*, and cam 2 and lever 2 come into operation (Figs. 6, 9, and13), and the spindle or step rail M and lifter rail N are raised, theaction being the re verse of that shown in Figs. 8 and 11, and thespindle J enters the flier H; cam 13 comes into operation, also cam 12,and the spindle is turned until the flier is screwed on its spindle. Assoon as this operation is performed, the flier holder Gr returns to itsoriginal position by means of the cam 11 and its lever 11 and gearingshown in Fig. let. The movement of the spindle and flier is continueduntil a wrap or two of yarn is put on to the empty bobbin. Cam 8 nowplaces its lever 8 and clutch members D and E into operation by a secondmotion of said cam, and the peg bar P moves farther up. One end of bar 0carried thereon, carries a bowl 0 working in a cam bracket 0 and as thesaid bar 0 moves up, it is caused to slide in direction of arrow in Fig.2, by reason of the configuration of the cam bracket 0 The bar 0 inaddition to carrying thereon breakers O (Figs. 1 and 2), carries aninclined projection 0 (Figs. 1 and 2), which as the bar 0 is moved bythe bowl 0 tends to wedge the full bobbin on its peg.

The shaft 0 from which a chain K operates the peg rail P is provided onone end with a ratchet quadrant O and catch 0 (Fig. 20). The quadrantand catch serve to keep the peg rail in its first raised positionagainst the action of a balance weight. As the shaft 0 revolves to raisethe peg rail P, the catch gradually passes over the quadrant and therail P drops by its own weight and that of the balance weight, a stop 0preventing the quadrant O fall ing too far. This causes the thread whichextends from the flier to the full bobbin to be broken, as such threadis embraced by the upper or hooked or like portion of the thread breaker0 The dofling is now completed, and the mechanism knocks ofi, by cam 14engaging lever Z on rod A and releasing clutch mechanism A and is readyto start spinning, at the same time the lifter motion clutch T T is putinto gear, (Figs. 17 and 18).

In order to insure the correct travel of the step rail M, the levers 7and 10 (Fig. 6) are extended and provided with bowls V, (Figs. 6, 1 1,13, and 16), to engage cam projections V formed on the step rail M orattached thereto. This arrangement will i be understood from Fig. 16.This arrangement insures the levers and therefore their clutches beingthrown out of gear at the correct time.

What I claim as my invention is 2- 1. A doffing mechanism for flyspinning frames, comprising a series of spindles for the bobbins, aflier screwed to each spindle, means for rotating the spindles, meansfor holding the fliers stationary, means for detaching the spindle fromthe bobbin and flier, means for displacing the full bobbin, means forplacing an empty bobbin on the spindle, and means for actuating saidbefore mentioned plurality of means comprising a shaft, clutchesthereon, a cam shaft and operating levers actuated by the cams on saidshaft for placing said clutches into and out of gearing. I

2. In automatic doffers for fly spinning frames, a bobbin carryingspindle, a flier screwed to said spindle, means for detaching saidspindle from the flier, comprising means for rotating the spindle todetach the flier therefrom, and means for holding said flier stationarywhile the spindle is rotating, said means comprising a pair of prongsspaced apart and of uneven length, each prong having a recess in itsupper face for the flier to rest in, and means for reciprocating saidprongs.

3. In automatic dofiers for fly spinning frames, the combination withthe spindles and the fliers thereon, means for holding the fliers andbobbins stationary when the spindles are to be detached from saidbobbins and fliers, said detaching means consisting of a pinion on eachspindle, a sliding shaft, worm gears on said shaft engaging with thepinions, means for rotating the sliding shaft, and automatic means forre ciprocating the shaft to move the pinions and worm gears into and outof gear, said automatic means comprising a lever having one end engagingthe shaft and a rotating cam engaging the other end of the lever.

4. In automatic doffers for fly spinning frames, the combination withthe spindles and fliers thereon, means for detaching the spindles fromthe bobbins and fliers, means for holding the fliers stationary, and aholder for the bobbin comprising a fork shaped piece, means forreciprocating the holder to cause the fork to engage with the bobbin tohold the same stationary while the spindle is being detached therefrom,a peg rail having pegs thereon adapted to receive the bobbin from theholder, means for moving the peg rail into and out of operative positionand means for automatically actuating all of the beforementioned meansfrom the main shaft.

5. In automatic dolfers, for fly spinning frames, the combination withthe spindles, means for moving the same to detach the bobbins therefrom,a peg rail having pegs thereon, a supporting rod to which the rail ishinged, a stop with which the rail engages when in its lowest positionfor tilting the said rail, means for raising and lowering said rail,means for moving the bobbin from a position over the spindle to a position over the peg whereby the peg will engage with the bobbin as itmoves upwardly and means for automatically actuating the beforementioned means from the main shaft.

6. In automatic dotlers for fly spinning frames, the combination withthe spindles, means for moving the same to detach the bobbins therefrom,a peg rail for receiving the bobbins, means for moving the bobbins fromthe spindles, on to the peg rail, means for giving the peg rail verticalmovement to receive the bobbins, a sliding thread breaker bar, threadbreakers thereon, engaging with the thread to break the same on thedownward movement of the peg rail, inclined wedges on said breaker baradapted to force the bobbins on to the peg rail, and means forreciprocating said bar.

7. In automatic dofiers for fiy spinning frames, the combination withthe spindles, a vertically movable step rail on which the lower ends ofthe spindles rest, means for moving the rail to permit longitudinalmovement of the spindles so that said spindles will engage and disengagewith the bobbins, and means for insuring the correct travel of said steprail, said means comprising inclined portions on the rail, and leversadapted to engage therewith for stopping the movement of the rail at theproper time.

8. In automatic doffers for fly spinning frames, the combination withthe spindles, means for moving the same to detach the bobbins, a pegrail for the empty bobbins, a peg rail for the full bobbins, means formoving the full bobbins from the spindles to the peg rail for the fullbobbins, and means for revolving the empty peg rail to place the emptybobbin in position over the spindle, springs on the empty peg railengaging with the empty bobbins to hold the same in place, and a movablestop adapted to engage with said springs to release the same when theempty bobbin is in place over the spindle.

9. In automatic doffers for fly spinning frames, the combination withthe spindles,

means for moving the same to detach the bobbins, a peg rail having pegsthereon, means for raising the same, means for moving the full bobbinsfrom the spindles on to the pegs, means for lowering the peg rail. athread breaker, inclined cam guides for the same whereby the breakerswill engage with the thread to break the same, a shaft carrying aratchet to hold up the thread breaker as it rises and allowing the sameto fall by means of a balance weight as soon as the thread breaker hasreached its highest point.

10. In automatic doffers for fly spinning frames, the combination withthe spindles and the fliers, means for moving the same vertically todetach the bobbins and fliers therefrom, a reciprocating fork engagingwith the flier to hold the same stationary while the detaching operationis being carried out, a reciprocating bobbin holder for moving thebobbin laterally from otl the spindle, a vertically movable peg rail having pegs thereon, for receiving the full bobbins from the bobbin holder,an oscillating empty peg rail for delivering the empty bobbins to aposition over the spindle, a vertically movable step rail, supportingthe lower end of the spindles, breakers for breaking the thread, asliding bar for said breakers andmeans for automatically actuating thebefore mentioned means from the main shaft.

In witness whereof, I have hereunto set my hand, in the presence of twowitnesses.

NOltlliAN ROBERT NEWSHOLME, I'Vitnesses Josnrr-r P. KIRBY, J. J.BOTTERILL.

